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The answer is 8. In the statement "7 plus blank 15," the word "plus" indicates addition. So, the expression can be written as 7 + x = 15, where x is the unknown number. By solving for x, we find that x = 8.

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3mo ago

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Wiki User

10y ago

If you mean: 7 plus blank = 15 then it is 7+8 = 15

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Q: If they say 7 plus blank 15 what is the answer?
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